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Finding the Fourth Proportional to 5,664.64, 8,496.66 and 1,768.78

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Solution

The fourth proportional to 5,664.64, 8,496.66 and 1,768.78 is: 2,653.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,664.64 : 8,496.66 = 1,768.78 : x
  2. Step 2: Convert to fraction form
    5,664.64/8,496.66 = 1,768.78/x
  3. Step 3: Cross multiply
    5,664.64x = 8,496.66 × 1,768.78
  4. Step 4: Simplify right side
    5,664.64x = 15,028,722.27
  5. Step 5: Solve for x
    x = 15,028,722.27/5,664.64
  6. Step 6: Final answer
    x = 2,653.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.